Drawing press



Julie 10, 1924. 1,497,001

. w. s. ROTHERHAM DRAWING PRES S Filed Jan. 19, 1921 7 Sheets-Sheet 1 WRather/m w @5 hi! auto M4013 June 10, 1924.

w. s. ROTHERHAM' DRAWING PRESS Filed Jan. 19 1921 7- Sheets-Sheet 2 146'. R07 her/1am; wuemtoz Jun l0 1924. v

W. S. ROTHERHAM DRAWING PRESS 19 1921 7 Sheets-Shed 5 Filed Jan.

Fume 10 1924,. 1,497,001

W. S. ROTHERHAM DRAWING PRESS Filed Jan. 19, 1921 TSheets-Sheet 5 MA IN$1 [05 130 vwmtoz m6. RoTherha/n,

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DRAWING PRES S Filed Jan; 19, 1921 7 Sheets-Sheet 6 avweuto'b 144 6.Raf/verbal m, @51 5/ abtmq WALTER S. ROTHERHAM, 0F POMPT'O'N LAKES, NEWJERSEY, ASSIGNOR TO E. DU PONT DE NEMOURS & COMPANY, OFWILMINGTON,DELAWARE, A CORPORATION OF DELAWARE.

DRAWING PRESS.

Application filed January 19, 1921. Serial No. 438,400.

To all whom it may concern:

Be it known that I, WALTER S. RorHER- HAM, a citizen of the UnitedStatesyand a resident of Pompton Lakes, in the county of Passaic andState of New Jersey, have invented a certain new and useful DrawingPress, of which the following is a specification.

V This invention relates to presses for drawing metal articles byforcing the same through dies to work the articles into desired form.More particularly, the inven tion relates to a press for drawingcylindrical shells, increasing their lengths at the expense of theirdiameters. Since the illustrated press has been found particularlyuseful in the drawing of copper shells for blasting caps, I describe itwith more particular reference to that art, but it will be understoodthat I do not restrict it thereto.

Blasting caps are used to detonate high explosive charges. A shell abouttwo inches long and one quarter inch in diameter, as drawn by thepreserit'press from a 'cup about three-eights inch long by one-half inchin diameter, the shell as produced by the press having a closed bottomand open top, is loaded with a sensitive and violent explosive, forexample, fulminate of mercury, and a fuse is inserted in the open end ofthe loaded shell, or cap, and the'cap is placed in close relation to thecharge of high ex-. plosive. The explosion of the cap gives the shockand heat necessary to cause detonation of the charge.

With the shells destined for uses such as outlined, they must, tomeetcompetition, be produced in large quantities, at relatively lowcost, and of uniform dimensions. The

present press provides for such production.

One object of the invention is to provide a drawing press having aseries of dies of Another object is to provide a drawing press in whichshells of comparatively great length canbe completely. drawn, from thecup to the fully drawn shell, in a continuous operation uninterrupted byannealing between the draws.

Another object is to provide an article shifting mechanism for drawingpresses.

Another object is to'provide an article feeding mechanism for drawingpresses. To these ends, and also to improve generally upon devices ofthe character indicated, my invention consists in the various mattershereinafter described and claimed. Without restricting my inventionthereto I describe it by reference to the drawing press illustrated inthe accompanying drawings. The various figures of the drawings exceptFigure 1, have more particular relation to the right hand half of themachine as illustrated in Figure 1; in the figures relating to thedrawing portions of the press the parts are shown substantially as theyappear when the shell-shifting slide is at the limit of its forwardtravel, the dwell is occurring and drawing substantially taking place,except that in Figures 1 and 2 the plunger holder has been raisedwithout disturbing the other parts, so as to the better show theplungers. In the drawings Figure 1 is a front view of the press,somewhat elementary in character and with various details omitted; I

Figure 2 is an end view looking in the direction of the arrow 2, Figure1;

Figure 3 is a plan view looking in the direction of the arrow 3, Figure1 Figure 4 is a longitudinal sectional view substantially on line 4+4 ofFigure 3; Figure 5 is a cross-sectional view substantially on the line5-5 of Figure 3;

Figure 6, is a bottom plan view of one of the cam slides, the lower orfront one as v is a face View of the feeding disc Figure 10 is an edgeview of the parts related to the feeding disc looking in the directionof the arrow 10, Figure 8, and

Figure 11 is an enlarged fragmental section view through the feed discsubstantially on line 1111 of Figure 8, looking radially outward from'the centre of the disc, and showing the carrier in normal, untripped,position.

The illustrated press comprises two press units, A and 1B, fed from acommon hopper H by the feeding mechanisms designated generally as A andB Since the units A and 1B are alike, i. e. rights and lofts, and theirmechanisms A and B alike, I shall describe more, particularly the unit Aand its mechanism A, the description suflicing for the unit 18 and itsmechanismB and, first, ll shall describe those portions of the unit Awhich act upon the cups to draw them and to shift them, and, next shalldescribe the feeding mechanism A for feeding the cups from the hopper tothe drawing andshifting parts of the unit A.

The frame 1 carries a series of dies or matrices 2 into each of which inturn a specified cup is introduced and is partially drawn. The dies areof decreasing diametors in the direction of travel.of the cups from leftto right'(Fig. 4) and are sufiicient in number to provide for thecomplete drawing of the cups into shells with the amount of drawing ateach die sufficiently small to insure that the partially drawn shellswill not have to be annealed between one draw and the next, the presentmachine having six dies. A series of plungers 3 is carried by thereciprocating plunger holder 4, for entering the dies to force theshells into the dies and draw them. The cups to be drawn are fed fromthe pipe 5 at the left, open end up and one at a time, and lie on therest there-below until transported to the dies.

For forcing the partially drawn shells upward out of the dies, afterthey have been forced into the same by the plungers 3, there is provideda series of ejectors 6 (Fig. 4), one for each die except the last, 2-These ejectors, or pins, 6 are urged to lowered position by springs 7expanding between abutments 8 and 9 on the machine frame and pinsrespectively, but are raised by the cams 10, in proper timed relation tothe rising of the plungers. The cams are carried onthe rotating shaft 11(Figs. 2 and 1) and are operatively associated with the pins 6 by thelevers 12 oscillatably mounted on the machine frame at 12 and eachhaving a nose 13 disposed between its co-related cam 10 and ejector 6.The partially drawn shells, as they, followed by the ejectors 6, risefrom the dies 2, rest above the dies, there being provided stripperplates 14C (Fig. 4) carried by a block 15 on the bed 16 and eachprovided with an aperture 17 through which the related plungerreciprocates bringing the shellin contact with the lower side of theplate to strip the shell from the plunger; similarly with the scrap,which rises with the last of the plungers. 'The shells, after beingtransported (as cups) from below the pipe 5 to the first die 2 andshifted from die to die, by the mechanism to be described next below,are passed through the last die, 2 at the right and discharged throughthe outlet 18, the relative dimensions of the last die and its plungerproviding for the shell not being carried upward with the plunger on itsretreat. The scrap, or small ring of metal trimmed from the top of theshell at the last die by the cooperating shoulders 3 (Fig. 1) and 2(Fig. 4) on the last plunger and die, is moved to the air box or outlet19, by the just mentioned mechanism, and blown through the-passage 20,by an air blast from the pipe 21.

The mechanism for shifting the cups from belgw the pipe 5 to the firstdie 2*, shifting the partially drawn shells step-bystep from die to die,and shifting the scrap from the last die, 2 to the air box 19 com-=prises, in general (Figs. 3, 4 and 5) a main or carrying slide,designated generally as 22, for moving the articles, and reciprocated bythe cam'23 on the shaft 24:; a series of coupling devices, each shown byway of ex= ample as comprising a pair of coupling units or fingers 25,for coupling the articles to the main slide to be drawn along thereby;means, shown as springs 26, for forcing the couplings into couplingposition; and means, here exemplified by cam slides 27, for controllingand determining the positioncoupled or uncoupled-pf the couplings 25,such last-named means being operated by the cams 28-29 on the shaft 24.The coupling devices are mounted on and carried by the main slide; therelative positions of the main slide and the cam slides determine thepositions of the coupling devices. Tn operation, the'couplings connectthe cup to be drawn, the partially drawn shells, and the scrap, to themain slide; the main slide. moves forward to bring the cm to the firstdie, each partially drawn shell to a (smaller) die other than that inwhich it has justbeen drawn, and the scrap to the outlet; the couplingsuncouple the articles in their new positions and drawin occurs; and themain slide goes back to original position, ready to repeat the cycle;and so on. As to the more important features of this mechan1sm:

The carrying slide or shifter 22 is, for con venience, composed of twosections 22 and 22 connected by the screw 30 which passes through abridge piece 31, attached to the sections 22 at 32, and is screwed intothe tongue 33 on the section 22*and inserted in the socket 334 in thesection 22. The pertoo tion 22 carries rollers 35 and 36 for cooperationwith the cam 23 which reciproc'ates the slide 22, the portion 22 beingslotted at 37 to permit reciprocation with respect to the shaft 24 whichpasses through the slot 37 The portion 22*, which carries the couplings25 and immediately moves the articles, is provided, at each side of acentral slot 38, for exposing the dies and permitting the passage of theplungers 3, with a series of coupling-receivin recesses 39. The numberof these'recesses 1s sufiicient to provide for a pair of couplings onein excess of the number of dies-in the present case seven pairs. Theserecesses 39 are oppositely disposed, to provide for the units of acoupling pair being arranged opposi ely, andare spaced longitudinally ofthe slide, each fromnext, in correspondence with the spacing of thelocation or position below the feed pipe 5, the dies, and the exit 20into the air box 19; the parts in the present instance are substantiallyequi-v distant. In the bottom of each recess 39 is an opening 40 ofsubstantially the contour shown.

A coupling unit 25 is received in each recess 39 for reciprocationbackward and forward therein, the units being covered by plates 22attached to the portion 22*.

Each unit is urged or moved toward the dies 2 by its co-relatedexpanding spring 26 located between the back end of the coupling unitand a wall 41 on the portion 22. The units are recessed at 25 in theirforward ends to substantially correspond to one-half of the periphery ofthe article. The previously referred to unit-controlling cam slides 27,one for each longitudinal series of coupling units, are carried inlongitudinal slide-ways 42 located in the bottom of the portion 22 andextending into the portion 22*. Each unit 25 carries on its under side acam roller 43 located in the previously referred to opening 40. The camslide 27 (Fig. 6) for cooperation with the units of a specified serieslies between the rollers 43 of that series and the dies 2. It has on itsroller-facing side a series of cam surfaces 44, each such surfacecomprising a deep-cut portion 44 and a shallow cut portion 44.Evidently, as the slides reciprocate, when the surfaces 44 are incontact with the rollers 43 the coupling units will be retracted intouncoupled position; and when the surfaces 44 are in contact with therollers 43, permitting the springs to push the units into forwardposition, the ends 2") of the units substantially encircle the articlesand couple them to the main slide to be drawn along thereby. The camslides are mated 'to cause all the various units to advance and retreattogether. The position of the cam slides 27, and hence the position ofthe couplings, depends upon the -reciprocation with respect thereto.

relative position of the cam slides and the main silde 22 as they arereciprocated. As previously mentioned, the. cam slides are reciprocatedby the cams 2829.

The connection between the cam slides andthe cams 2829 is as follows(Figs. 2, 3 and 4) :The slides extend into the portion 22 of the mainslide 22, as indicated at 45, and are connected by pins 46 with camslide extensions 47. These extensions are slidahly mounted in slide-ways42 in the upper side of the portion 22*, or main slide extension of themain slide 22. The pins 46 pass through reciprocation-permitting slots46 in the portion 22 In order that the cam slides shall be movedtogether they are connected by a plate 48 attached to the slides at 49,the plate being slotted at 50 for passage of the shaft 24 to perniit T eplate carries cam rollers 51 and 52, the roller 51, for cooperation withthe upper cam, 28, to give forward, or right-hand, motion to the slidesand the other, 52, for cooperation with the lower cam, 29, to give backward, or left-hand motion.

The contours, and relative motions, of the cams 10 for the ejectors, thecam 23 for the slide 22, and the cams 28-29 for the cam slides, and thereciprocations of the plungers, may be timed 'as desired for properoperation, and I prefer a timing substantially such as that graphicallyrepresented in the chart comprising Fig. 7.

I will now briefly describe this chart, and then will briefly review theoperation of the press as thus far described, with incidental referenceto the chart.

In the chart are shown four curves. I indicates the positions of themain slide, II the positions of the cam slides, III the positions of theejectors, and IV the positions of the plungers. In curves I and II thelowest portions of the curves represent the initial, or left-handposition of the slides, and distances above those portions represent thedistances of the slides away from initial position. In curve III thelowest portion represents the lowest position of the ejectors, anddistances above the distances above the lowered position. In

curve IV the rise and fall of the curve repv resents the rise and fallof the plungers. Distances along the horizontal axis indicate .degreesof rotation, all the cams and the Tn operation :-At the beginning of acycle (a) the various slides are at the extreme left in initial positionand the initial dwell beginning. Drawing has previously occurred and theplungers are rising and so are the ejectors. Now the cam-slides moveforward (a-b) permitting the couplings to move into coupling position.About at this time the partially drawn shells and the scrap are strippedfrom the rising plungers and drop between the coupling units (the unitsnot advancing to such a position as to prevent this) and the extremeleft-hand couplings encompass the new cup standing below the bottom ofthe feed pipe, they not advancing suficiently to prevent a cup droppingbetween them, should the cup be feeding from the pipe. While the initialdwell of the main slide is still continuing (ad) the ejectors completelyrise and remain up (0 e) during some of the time in which the main slideis moving to the left (d f) and drawing along the new cup and thepartially drawn shells to their new ositions. (It will benoted from theparal el curves that the cam slides and main slide move forward togetherkeeping the couplings in coupling position.) The ejectors are of suchlength and diameter that, when up, they substantially fill the holes inthe dies and lie flush with the tops of the dies thus to present asmooth floor for the shells to slide over as they are drawn forward andare timed to be up and prevent catching of a shell in a die when theforward motion begins.

.When the right hand dwell of the slides is reached (f) and, hence, thenewcup has been placed over the first die, and each partially drawnshell over the next die to that in which it has just been drawn (and thescrap has been moved from the last die to the air box) drawing maybegin. lit occurs during the dwell, since the plungers descend and riseat this time and draw approximately at 9 say, the ejectors descending(e-h) to not interfere with the drawing. After the drawing, and duringthe right dwell (7 c') of the main slide, the cam slides are moved tothe left (j-k) to move the couplings into retracted position. Then allslides move back (5-41) to initial position (a) completing the cycle.Desirably the travel of the plungers is such that, when the main slidestarts to move to the left the shells are not free of the plungers,whereby the plungers hold the shells, and make doubly sure that theywill not be carried back by the main slide should the cam slides not yethave caused the couplings to suficiently retreat; in such a case thecouplings will slide past the shells, the shells compelling the retreatof the couplings.

In the described arrangement for coupling the articles to the mainorcarrying slide it is to be acted that the position and moveiaeaeoiments of the couplings are determined by positive -meansthe camslides-thus providing for accuracy and positiveness, and eliminatingpossibility of harm to the shells. These are results which could not beuniformly obtained were the shells relied upon to normally actuate thecouplings.

It will be understood that the cams 2829 are substantiallycomplementary, the contours being such that the cam 29 and roller 52 donot interfere with the moving forward of the cam slides by the cam 28,nor the cam 28 and roller 51 interfere with the moving backward of thecam slides by the cam 29. It will be seen that this double-camconstruction gives relatively simple cam surfaces and eliminates the useof a return spring, as compared to a single-cam construction. All thevarious cams may be contoured substantially as illustrated, indeed inthe chart curves T, TT and HT are substantially cam developments.

Having described the drawing parts of the machine T will now explainthose parts of the machine, designated enerally as A for feedin the cupsfrom t e hopper H to the feed pipe 5, to be taken from adjacent thebottom thereof by the main slide or shifter and shifted tothe first die.This mechanism feeds cups into the upper end of the pipe in substantialcorrespondence with the taking of the cups one-by-one from the bottom ofthe pipe 5. Reference is made to Figures8 to 11 more particularly.

In the side 53 of the hopper H, and practically forming the majorportion of the side, is inserted a disc 54 mounted for rotation on theshaft 55 which latter is mounted at 56 in the hopper. This disc 54 inits rotation takes the cups from the hopper and introduces themone-by-one into the top of the feed pipe 5. lit is driven by the gearwheel 57 rotatably mounted on the rear wall of the hopper at 58 andmeshing with teeth. 59 on the periphery of the disc. The gear 57 isdriven from theshaft 60 (Fig. 1) for example by the crossed belt 61 andwheel 62 though a more complicated driving connection may be used ifdesired. This shaft 60 is the main drive shaft of the machine. Not onlyis it belted, at 61, to the disc 54, but also (a) it carries the crank63 for. driving the plungers 3- (through the connecting rod 64:) and (b)is geared, at 65, to the shaft 24: which carries the cams 23 and 2829,and is geared at 66 to the ejector-driving shaft 11. Thus the feedingdisc 54: performs its feeding rotations in timed relation to theplungers, slides and ejectors.

Now to describe the detailed structure which enables the disc 54 to feedthe cups to the pipe 5:First, it shall describe the features whichenable the disc to feed in its simple uninterrupted manner,substantially ing the disc 54. Throughout the inner peripher of thisannulus (except as interrupte by the pipe 5) is a cup channel 68. Thischannel, for the longer span substantially between the line 02-:0 (Fig.8) and the line 3/y, i. e. through a large part of its length, is widelyopen to the interior of the hopper as indicated at 69 in Fig. 9.Throughout the rest of its length the channel has but a narrow slot, asindicated at 7 O in Fig. 9. This slot "69-70 is sufliciently .wide atits part 69 to permit cups to fall into or out of the slot, and at itspart 7 O is sufficiently narrow to prevent the cups falling out.introduced tangentially into the annulus 67 at 71, its passage forming acontinuation of the channel 68.

A series of cup carriers, designated generally as 72, are carried nearthe periphery of the disc 54. A complete circumferential series isordinarily used, but for simplicity in the drawings many of the units ofsuch series are omitted. Each carrier comprises a hook, pick-up, member,or article-carrying projection, 73, whose hook-end 74 is, normally,located to travel along in the channel, facing in the direction oftravel of the disc, i. e. anti-clockwise in Fig. 8. The hook is fast toa shank 75 which is rotatably 'mounted in the disk 54.- At its outer endthe shank 75 has a crank 76. On this crank is mounted a'cam roller 77,and also a tripfinger-and-actuator 78 stationary with respect to thecrank, constituting a controller for the hook. A spring 79, attached'tothe disc 54 by the screw 80 and to the finger (and crank) at 81, tendsto turn the crank clockwise, thus to cause the hook to snap, or swingquickly, out of the channel, its end 74withdrawing out of the channelbackwards (with respect to the direction of travel of the disc 54 andcarrier 72 as a whole) to wholly withdraw from the channel and the slot6970. This tendency of the spring 79 is, normally, resisted by aball-and-socket catch comprising a ball 82 permanently held in the disc54 but urged into the socket 83, of the crank 76, by the spring 84'.

The finger 78 is contoured to provide along its edge a tripperprojection 85, a pushing and lifting surface 86, and a lifting surface87. The forward end of the finger which presents the surfaces 86 and 87is offset outward (relative to the outer face of the disc 54) at 88,placing the surfaces The upper end of the pipe 5 is 86 and 87 in a planeoutward of the plane of the tripper projection 85 and the hereaftermentioned trips 89 and 104 but in 4 the plane of the pin 125 hereaftermentioned. The finger and hook are actuated by the trip, or projection,89 located near the mouth of the pipe 5, and located in the plane oftravel of the projection 85 and r,

they are also actuated by the cam track 90 which contacts the roller 77and has, it will be noted, a dip 91 near the tripping projection 89, anda subsequent rise 92. The projection 89 is carried upon a supported bandand steadying track 93, the cam track 90 and supporter band beingcarried by bridges 94 from the annulus 67 which lie outward of and innon-interfei'ing position with respect to, the carriers. The projection'85 is located in a plane outward of the cam'track- 90 and the hereaftermentioned slides 100, 107, 108.

. The hopper H has an inclined bottom, as indicated at 95, down whichthe cups slide toward the channel 68, the volume of cups having accessto the channel being controlled by the gate 96, vertically adjustable,by the bolt-and-turn-nut 97,'on the partition wall 98, to determine theheight of the opening 99 giving access to the channel 68.

In the normal, steady, uninterruptedfeed operation the action is asfollows:- Certain of the shells in the hopper descend by gravity intothe channel 68 in its lower arc. Of these, some lie in the channel'withtheir open ends facing the hooks which, depending into the channel 68from the disc 54 and held in that position by the ball-and-socket latch8283, are moving forward (anti-clockwise) in the channel with their ends74 facing forward along the channel. These cups are picked up on thehooks and carried along. The hooks pre 'vent the cups from falling outof the open part 69 of the channel, and narrow part, 70, of the slot69-7() is too narrow to permit dropping out of the cups (but of coursewide enough for entrance of the hook body). The hooks remain in thisprojectin'g-into-the-channel position until the tripper projection 89near the entrance of pipe 5 is reached, there being nothing inserted inthe path of the finger 78 to move it from its normal tangentialposition. U on reaching the projection 89 the pro ection '85 wipes it.The balland-socket latch 82-83 is overcome, and the hook is movedbackward out of the channel in position to clear the pipe 5 (the dip 91in the cam track permitting this); and the cup passes into the pipe 5,open end up and ready to be introduced to the dies when it reaches thebottom of the pipe. As the hook continues its travel the rise 92 in thecam track moves the finger back to tangential position, the

ball 82 snaps into the socket 88, and the hookis returned to the cupchannel, ready to pick up another cup. 1

Next, ll will describe the structures whereby the feeding of the cups tothe pipe 5 is interrupted on occasion, while the disc 54 continues torotate. The purpose of this interruption is to insure that the pipe 5,or more exactly the portion of the channel 68 near the pipe, will notbecome filled with a col of cups so long as to interfere with easy andharmless moving of the cups along the channel, in case the disc 54conveys more Near its rear end the strip carries a projection, or trip,104: which projects outward from the strip into the plane of the tripperprojections 85 on the fingers 78 which govern the cuphooks 73. When thestrip is in its backward position, and the tripper 10 1 thus in itsradially outward position, the trip lies out of the ath of the tripperprojections 85. With the trip in forward position, the projection 85 ofeach 1 approaching finger strikes it, the ball-and-socket latch 82.83 isovercome, the spring 79' snaps the hook 73 backward out of the carriedcup, and the cup drops back into the hopper through the Wide art 69 ofthe slot 69. in the channel 67; t us no cups are carried to the pipe 5.(lit will he noted that the track 90 is interruptedat 105 to permit theswinging of the carrier 72 and then is resumed with a surface 106 torock the-carriers back into no mal or tangential position.) i

For controlli'n the shifting of the slide 100 and, hence, t e positionof the trip. 104, the mechanism "is as follows :The slide 100 is one ofa series of slides, the series comprising the slide 100 or trip slide,the slide 107 or connector slide, and the slide 108or controller slide.The slides are held circumferentially slidable on the supporter hand 93-by in-and-slot connections 109. The slide10 has the other slides hingedto its opposite ends at 110 and 111, the hinges giving to the slide 100the freedom necessary for the radial travel of the trip 104, and givinga freedom of swingto the slide 108 for a purpose presently to appear.The series of slides are urged to backwai'd, or trip-1041-out-of-the-way, position by a spring 112 con nected to the casting orannulus 67 at'118 naeaooi and to the slide 107 at 1141. A 115, for

for the stop and lever respectively being clamped to the sleeve 123rotatable on the stud 116. Evidently the parts 115, 119 etc.

constitute a species of latch. The lever 119 has its end 1261 lying inthe plane of the projections on the fingers 7 8 and behind the plane ofthe ends 87 of the fingers. Upon the forward end of the slide 108 is apuller pin 125, projecting into the plane of the off-set ends '87 of thefingers 78but radially beyond the path of travel of the projections 85,and ends 87 on fingers 78 when the slide 108 is inradially inwardposition and the fingers in tangential position.

Behind the puller pin is a triangular slot 126 in the slide '108, whichencompasses a guide pin 127 on the supporting band 93 and providesbyits'length 126 for the required longitudinal movement of the slide108, and by its height 126 for the required swing about the hinge 111.

The operation of the above mechanism is as follows I j In normalunrestricted operation the slides 100,107, and 108 are pulled to theright by the spring 112, with the stop 115 riding on the outer edge ofthe slide 107 just ahead of the shoulder 117-, the forwardend of theslide 108 lying in lowered or radially inward position,'and the trip 10%resting in radially outward position. With the parts so placed thefingers7 8 remain in tangential position and the hooks in radial orcup-carrying position until the stop 89 isxreached; and the cups areuninterruptedly fed to the pipe 5. Now, should the pipe 5 fill up, byreason of the disc 54 feed1ng faster than is required, and the column ofcups reach back along the arc of the channel 68, the top of the columnwill ultimately reach a point (say X) somewhat, in rear(circumferenhally) of the puller pin 125 on the forward end of thepuller slide 108. When a hook reaches the head of this column theresistance encountered overcomesthe ball-and-socket 8283, which holdsthe cup carrier in normal position with the.finger 78 in tangentialposition, and the spring 79 snaps the. carrier into abnormal positionwith its hook free of the slot and its linger in radial position 1(seeupper left hand showing in Fig.8), the dip 91 in the cam track 90permitting thls. With the finger in radial position, when it reaches'the pm 125 it pushes on the pin with the edge 86 and pulls the threeslides forward. The pin rides up the edge 86 to ultimately let thefingerpass under the pin, and the stop 115 drops behind the shoulder 117 tolock the slides inforward position. This movement of the slides pulls104 into the path of the projections 85 on the fingers so as to trip thecup carriers. Henceforward the hooks are freed from the cups and no cupsare carried forward to the arc of the cup channel 68 above the pipe 5.As the cups continue to be discharged from the pipe 5, the time eventually arrives when the length of the column of cups behindend 124 ofthe lifter lever 119 is so short that a finger 7 8 is not turned soonenough to swing the projection 85 of the finger 78 out of the Way of theend 124. So the projection 85 strikes the end 124, lifting the lever 119and so lifting the stop 115 from behind the shoulder 117, the spring 112pulls the slides back to normal position, and the trip 104 is moved outof the path of the projections 85. The cup carriers 72 no longer aretripped, and the regular, interrupted cup feeding is resumed.

Should it'occur that, with the strip 108 in lowered position, the top ofthe column of cups lies so close to the pin 125 that, when the carriersnap sback, the finger strikes the pin on its forward side, the curvedsurface 87 will merely wipe onthe forward side of the pin, liftin thestrip 108 if necessary, the contour an location of the slot 126permitting this.

As to certain of the less tails I Desirably a cup spring 128 is mountedon the casting 67 and has its triangular end projecting partially acrossthe channel 68 through a slot 129 in the outer periphery of importantde- 1 the channel, for removing any cups that are not carried on a hookbut may be pushed along the channel ahead of a hook-carried cup.

For inspection purposes the annulus 67 may be slotted on its outerperiphery, as at 129 (Fig. 1), through such length as desired, such slotof course being narrower than the cups. The main slide 22 may be held onthe machine bed by'guides 131. The plungers may be of the generalcharacter indicated in Figure 1. The ends of the coupling units may haveincreasing heights to correspond with the increasing heights-of theshells as indicated at 25; the ends of the units of the first pair maybe bevelled back as indicated at 25 in Fig. 5, instead of beingsubstantially perpendicular like the other units, thus to permit the endof the pipe 5 being brought close to the units to discharge the/cupstherebetween; the last pair of couplings,or scrap couplings,maydesirably have their ends bevelled back as indicated at 25f (Figs. 3 and4) and be of considerable height to insure their receivingthe ring ofscrap as it is stripped from the plunger, andtheir presenting a properpassage for the air from ference with the movements of the fingers andslides by the plungers.

I claim 1. In a drawing press, in combination, a

single hopper, and a pair of pressing units;

-2. In a drawing press for drawing pre-v viously prepared individualarticles, .in combination, devices for operating -upon the articles andincluding a drawing die, and a receptacle, for the miscellaneous andsimultaneous reception of a plurality of the articles to be operatedupon, said machine providing a plurality of locations for articles inproximity to said devices and said de vices and receptacle beingassociated for travel of the articles from a position adja cent thereceptacle to one of said locations,

driven means for arranging the articles in proper attitude to beoperated upon by said drawing die and, for conveying the articles insaid attitude one-by-one from said recep-' tacle to said position fortravel to said associated location and to said die, driven means formoving the articles one-by-one from such location to another, anddriving means for driving said two drlven means in timed relation eachto the other,

I 3. In a drawing press for drawing previously prepared individualarticles,-in combination, a receptacle for the miscellaneous andsimultaneous reception of a plurality of the, articles to be drawn,drawing elements including a drawing die, a feed conduit in proximity tosaid receptacle and located to discharge the articles to a positionadjacent said die, driven means for taking the articles one-by-one fromsuch position and shifting them toward said die, driven means for takingthe articles one-by-one from said 1 receptacle; arranging the articlesin proper attitude to be operated upon by said drawtwo driven means.

' coupling 4. In a drawing press for drawing previously preparedindividual articles, in combination, a receptacle for the miscellaneousand simultaneous reception of a plurality of the articles to be drawn,drawing elements including a drawing die, a feed conduit in proximity tosaid receptacle and located to discharge the articles to a positionadja'-' cent said die, drivenmeans. for taking the articles one-by-onefrom such position and shifting them toward said die; such meansincluding an article-handling device mov-- able into and out of handlingposition and driven mechanism for positively controlling the movementsof said device; driven means for taking the articles one-by-one fromsaid receptacle; arranging the articles in proper attitude to beoperated upon by said draw ing die, and delivering them in said attitudeto said conduit, and means for driving said two driven means andsaiddriven mechanism.

5. lln a drawing press for drawing previously prepared individualarticles, in combination, a receptacle for the miscellaneous andsimultaneous reception of a plurality of the articles to be drawn,drawing elements for operating in succession upon each of said articlesand including a bank of dies, a feed conduit in proximity to saidreceptacle and located to discharge articles to a position adjacent thefirst die of said bank, driven means for taking the articles one-by-onefrom such position and shifting each from die to die, driven means fortaking the articles one-by-one from said receptacle, arranging thearticles in proper attitude to be operated upon bysaid drawing die, anddelivering them in said attitude to said conduit, and means for drivingsaid two driven means. I

6. In a machine of the character indicated for operating upon articlesand presenting a plurality of longitudinally spaced locations for thearticles; mechanism for moving the articles from one location to anotherand comprising, in combination, a driven shifter in proximity tosaid'locations, and carrying a mechanically controllable coupling devicefor coupling an article to, and uncoupling it from, the shifter, saidshifter being mounted for a movement in the direction of the spacing ofsaid locations, and corresponding to said spacing, to move the devicefrom correspondence with one location to correspondence with another,positively driven mechanical means, as distinguished from the articleoperated on, and

mechanically difierentiated from the shifter, for controlling theactivities of said device in its movements to and from couplingposition, and driving means for driving said is) I naeaooi shifter andsaid controlling means in timed relation each with the other.

7. In a machine of the character indicated for operating upon articlesand presenting a plurality of longitudinally spaced locations for thearticles; mechanism for moving the articles from one location to anotherand comprising, in combination, a driven shifter in proximity to saidlocations, and carrying coupling-device means for coupling an articleto, and uncoupling it from, the shifter, the number of said means beingat least equal to the number of said locations, said shifter beingmounted for a movement in the direction of the spacing of saidlocations, and corresponding to said spacing, to move thecoupling-device means from correspondence with one location tocorespondence with another, and driving means for said shifter. 8, In amachine of the character indicated for operating upon articles andpresenting a plurality of longitudinally spaced locations for thearticles; mechanism for moving the articles from one location toanother,

and comprising,.in combination, a driven shifter in proximity to saidlocations and carrying a mechanically controllable coupling device forcoupling an article to, and uncoupling it from, the shifter, and adaptedto occupy a coupling or an uncoupling position, said shifter beingmounted for a movement in the direction of the spacing of saidlocations, and corresponding to said spacing, to move the couplingdevice from correspondence With one location ,to correspondence withanother, means for moving said device toward one of said positions,positively driven mechanical means, as distinguished from the articleoperated on, and mechanically difi'erentiated from theshifter, formoving said device toward its other position, and driving means fordriving said shifter and said drivenimeans in timed relation each withthe other. a

9. In a machine of the character indicated for operating upon articlesand presenting a plurality of longitudinally spaced, locations for thearticles; mechanism for moving the articles from one location toanother,

and comprising, in combination, a driven shifter in proximity to saidlocations and carrying a mechanically controllable coupling device forcoupling an article to, and uncoupling it from, the shifter, and adaptedto occupy a coupling or an uncoupling position, said shifter beingmounted for a movement in the direction of the spacing of saidlocations, and corresponding to said spacing, to move the couplingdevice from corremechanically difierentiated from the shifter,

for moving said device toward its other position, one of said meansbeing located substantially directly in alignment with,-and ofsubstantially no greater width in the direction of the spacing of saidlocations than, said coupling device, and driving means for driving saidshifter and said driven means in timed relation each with the other.

10. In a machine of the character indicated for operating upon articlesand presenting a plurality of longitudinally spaced locations for thearticles mechanism for moving the articles from one location to anotherand comprising, in combination, a driven shifter in proximity to saidlocations and carrying a mechanically controllable cou pling device forcoupling an article to, and uncoupling it from, the shifter, saidshifter being mounted for a movement in the direction of the spacing ofsaid locations, and corresponding to said spacing, to move the couplingdevice from correspondence with one location to correspondence withanother, means for moving said device into coupling position, positivelydriven mechanical means, as distinguished from the article operated on,and mechanically difl'erentiated from the shifter, for moving the devicefrom coupling'position, and driving means for driving said shifter andsaid driven means in timed relation each to the other.

11. In a machine of the character indicated for operating upon articlesand presenting a bed and a plurality of longitudinally spaced locationsthereon for the articles; mechanism for moving the articles from onelocation to another and comprising', in combination, a driven carrierslide, carried upon said bed in proximity to said locations and carryinga controllable coupling device for coupling an article to, and

uncouplin an article from, the carrier slide and inclu ing a couplingunit shiftably mounted with respect to said slide for movement towardand from said locations to occupy a coupling or an uncoupling position;said carrier slide being mounted for a movement i'n the direction of thespacing of said locations and corresponding to said spacing, and saidunitvbeing provided with a camsurface-following structure; means formoving said coupling device, including the coupling unit thereof, towardone of said positions, driven means for moving said device toward itsother position and including a cam slide slidable with respect to saidcamsurface-following structure and having a cam surface for coo erationwith said structure and contoure to shift said unit during relativemovement, and driving means for driving said carrier slide and saiddriven means in timed relation each with the other. i

12. In a machine of the character indicated for operating upon artlclesand presentinga bed and a plurality of longitudinally spaced locationsthereon for the articles; mechanism for moving the articles from onelocation to another and comprising, in combination, a drivenlongitudinally apertured carrier slide carried upon said bed and locatedto place its aperture in register with said locations as the slide islongitudinally shifted and carrying a pair of opposed coupling unitslocated one at each side of said aperture and shiftable toward and fromsaid aperture to occupy a coupling or an uncoupling position, forcoupling an article to, or uncoupling an article from, the carrierslide, said carrier slide being mounted for a movement in the directionof the spacing of said locations and corresponding to said spacing, andeach said unit being provided with a camrsurface-following-structure,means for moving said units toward one of their positions, driven meansfor moving said units toward their other position, such means comprisinga pair of cam slides arranged one at each side of said aperture and eachslidable with respect to its corelated cam-following structure andcontoured to shift its co-related unit during relative movement, saidcam slides being mated to each shift its co-related unit in a directionopposite to that in which the opposed unit is shifted, and driving meansfor driving said carrier slide and said driven means in timed relationeach with the other.

13. In a machine of the character indicated for operating upon articlesand including devices for operating on the articles and a receptacle forthe articles to be operated upon, said devices and receptacle beingassociated for travel of the articles from a position adjacent thereceptacle to the devices; mechanism for taking the articles from saidreceptacle and placing them in said position, said mechanism comprising,in combination, a driven member, a trippable article carrier carriedwith said member to travel therewith, normally located inarticle-carried position, and trippable into articlefreed position, saidmember being located with respect to said receptacle to we access ofsaid carrier to said receptac e and to said adjacent position duringdriving of said member, a tripping device located in the path of saidcarrier adjacent such posi tion, and means for driving said drivenmember.

14. In a machine of the character indicatedfor operating upon articlesand including devices for operating on the articles and a receptacle forthe-articles to be operated upon, said evices and receptacle beingassociated for travel of the articles from a position adjacent thereceptacle to the devices;

mechanism for taking the articles from said receptacle and placing themin said position,

a driven member, a trippable article carrier carried with said member totravel therewith, normally located in article-carried position, andtrippable into article-freed position, said member being located withrespect to said receptacle to give access of said carrier to saidreceptacle and to saidadjacent position during driving of said mem-'her, a major tripping device located in the path of said carrieradjacent such position, an auxiliary tripping device located ahead ofsaid major device along the path of travel of said carrier, and removedfrom such position, and shiftable into and out of said path, means forshifting said auxiliary device into and out of said path and operable bysaid carrier on occasion, and means for driving said driven member. I

15. In an article feeding structure, in combination, an articlereceptacle having a wall presenting a substantially circular-apertureand surrounding annular article channel, said channel having alongitudinal opening therein facing said aperture and also having anarticle exit, a rotatable feeding disc located at said aperture andconcentrically positioned with respect to said channel with itsperiphery in close proximity to said channel, an article carrier movablymounted on said disc adjacent its periphery for movement into and out ofcarrying position and comprising an article-carrying element and acontroller, said carrying element lying in article-carriedposition withrelation to said channel when said carrier is in normal position andlying in article-freed relation when in abnormal position, means forholding said carrier in normal position, a trip device arranged adjacentsaid exit for cooperation with said controller to move said carriertoward abnormal position, means for returning the carrier tonormal-position, and means for driving said disc.

16. In an article feeding structure, in combination, an articlereceptacle having a wall presenting a substantially circular apertureand surrounding annular article channel, said channel having alongitudinal opening therein facing said aperture and also having anarticle exit, a rotatable feeding disc located at said aperture, andconcentrically positioned with respect to saidchannel with its peripheryin close proxdmity to said channel, anarticle carrier movably mounted onsaid disc adjacent its periphery for movement into and out of car ryingposition and comprising an articlecarrying element and a controller;said controller'comprising a shank pivoted in said disc and carryingsaid element, and a tripper finger and related cam roller carried bysaid shank; said carryin element lying in.

article-carried position with relation to said channel when said carrieris in normal position and lying 1n-art1cle-treed relation when manner inabnormal position, means for holding said carrier in normal position, atrip device arranged adjacent said exit for co-operation with saidtripper finger to move said carrier to abnormal position, a cam trackadjacent said disc and located for travel of said roller thereupon, saidtrack having a portion compelling the return of said carrier to normalposition, and means for driving said disc.

17 lln an article feeding structure, in combination, structure providingan article channel, said channel having an-exit there-- and also havingconnections between said element and controller for moving saidcontroller into carrier-tripped position under pressure upon saidelement, a trip located adjacent said portion of said longitudinalopening and shiftable into and out of the path of said controller,devices for causing shifting of said trip into said path and means forcausing shifting of it out of said path, said devices including anelement movable to bring about shifting and lying in the path of saidcontroller when the carrier is in tripped position, to be moved thereby;whereby when said'articles tail to discharge through said exit, and saidcarrying element strikes one, and the carrier is thereby moved totripped position, said controller moves said movable element, and. saiddevices move said trip into'carrier tripping position.

18. In an article feeding structure, in combination, a receptacle,structure providing a channel for the articles, with said channellocated to receive articles from the receptacle and having an exit andalso having an 0 en portion removed from said exit for the dlscharge bfarticles on occasion, said portion being located ahead of said exitrelative to the travel of the hereafter named carrier, a travellingcarrier for-carrying articles along said channel from said receptacleand trippable to discharge articles, both by a trip and by ressure ofportions of said carrier against t e articles, a shittable trip for saidcarrier adjacent said open portion and shiftable into tripping posit on,

means for shifting said trip into carriertripping position when saidcarrier is tripped by its pressure 11 on said articles, and means formoving sai carrier.

1%). ln an article feeding structure, in com- Ill) bination, areceptacle, structure providing a channel for the articles, with saidchannel located to receive articles from the receptacle and having anexit and also having an open portion removed from said exit for thedischarge of articles on occasion, said portion being located ahead ofsaid exit relative to the travel of the hereafter named carrier, atravelling carrier for carrying arti-* cles along said channel from saidreceptacle, trippable to discharge articles, both by a trip and bypressure of portions of said carrier against the articles, and having apusher for cooperation with the hereafter named pusher-cooperatingelement when said carrier is in tripped position, a shiftable trip forsaid carrier adjacent said open portion and shiftable into and out oftripping position, operative connections extending from said trip to alocation between said trip and said exit and having a pusher-cooperatingelement for cooperation with said pusher, whereby said trip shifts, andmeans for driving said carrier.

20. In an article feeding structure, in combination, a receptacle,structure providing a channel for the articles with said channel locatedto receive articles from the receptacle and having an exit and alsohaving an open portion removed from said exit for the discharge ofarticles on occasion, said portion being located ahead of said exitrelative to the travel of the hereafter named carrier, a travellingcarrier for carrying articles along said channel from said receptacle,trippable to discharge articles, both by a trip and by pressure ofportions of said carrier against the articles, and having a pusher forcooperation with the hereafter named pusher-cooperating element whensaid carrier is in tripped position and a latch lifter for contact withthe hereafter named latch when the carrier is in untripped position, ashiftable trip for said carrier adjacent said open portion and shiftableinto and out of tripping position, operative connections extending fromsaid trip to 'a location betweensaid trip and said exit and having apusher-cooperating element, for cooperation with said carrier to movesaid tri into trip-active position, a latch for holding said connectionsin trip-active position, means releasable by said latch to move saidtripto trip-inactive position, and means for driving said carrier.

21. In a machine of the character indicated and for operating uponarticles, in combination, receptacle for the articles to be operated on,devices for operating on the articles, and means for feeding articlesfrom said receptacle to said devices; such means comprising a memberhaving an article channel in communication with said receptacle andprovided with an article exit associated with said devices, means formoving articles along said channel to said exit and comprising a drivenmember and a carrier carried by said member; such carrier comprising aprojection totravel in said channel, a shank rotatable in said memberand carrying said projection, and a controller mounted on said shank;means for causing turning of said carrier With said shank, means toprevent such movement on occasion, a trip for said controller toovercome said preventing means on occasion, a second means to turn saidcarrier and adverse to said first named turning means, and means fordriving said driven member.

22. In a machine of the character indicated and for operating uponarticles, in combination, a receptacle for the articles to be operatedon, devices for operating on the articles, means for feeding articlesfrom the receptacle to said devices and comprising a driven member inproximity to said receptacle and carrying an article carrier located incommunication with said receptacle to take articles therefrom, suchcarrier being trippable from article-carried position to article-freedposition and having a pusher portion and a trip-contacting portion, ashiftable trip and means for operating the same; such operating meanscomprising a tripcarrying slide and a connected puller slide carrying anelement in the path of said pusher portion when said carrier is in oneof its positions, whereby when said carrier is in such position saidcarrier in its travel slides said slides and shifts said trip; and meansfor driving said member.

23. In a machine of the character indicated and for operating uponarticles, in combination, a receptacle for the articles to be operatedon, devices for operating on the articles, means for feeding articlesfrom the receptacle to said devices and comprising a driven member inproximity to said receptacle and carrying an article carrier located incommunication with said receptacle to take articles therefrom, suchcarrier being trippable from article-carried position to article-freedposition and having a latenreleasing portion, a shiftable trip and meansfor operating the same; such operating means comprising a latch-heldslide connected to said trip to move the same, and means for moving saidslide when released from said latch; a latch having an'eleinent in thepath of said latch-releasing portion when said carrier is in one of itspositions,

whereby when said carrier is in such posi-' tion said carrier in itstravel releases said latch and said slide-operating means moves saidlatch-held slide and shifts said trip, and means for driving saidmember.

24. In a shell drawing press for drawing open-ended cups into shells, incombination. a die bed provided with a longitudinal series of dies andpresenting an article rest at one end ofsaid series and a scrapescape atthe other, a plunger holder reciprocatable to and from said bed andcarrying a series of plungers for cooperation with said dies,

concentric therewith, a series of trippable cup carriers mounted withthe said disc adjacent its periphery and trippable by trips and alsounder pressure of the hereafter named holder on cups, and each providedwith a cup holder and a controller, said cup holder being arranged toproject into said channel and carry cups when the carrier is inuntripped position and to discharge cups when the carrier is in trippedposition, a trip for tripping the carriers adjacent the entrance to saidconduit, an auX- iliary trip for the carrier arranged ahead of the wideupper portion of said slot, and shiftable into and out of trippingposition, operative connections extending from said auxiliary triptoadjacent the entrance to said conduit and operable by a trippedcarture.

memoir rier to move said trip-into active position, and operable by anuntripped carrier to move the trip into inactive position, and means forreturning the carriers to untripped position; a driven carrier slidereciprocatable on said bed longitudinally of said series of dies andcarrying a series of articlecoupling pairs spaced in correspondence withthe spacing of said article rest, the dies, and the scrap escape, meansfor moving the units of said pairs to coupling position, a driven devicefor controlling the positions of said units, i. e. coupled or uncoupled,and reciprocatable relatively to said carrier slide, a. series of driven'ejectors for lifting the partially drawn shellsfrom the diesintoposition to be coupled to the carrier slide by the coupling units, andtimed means for driving the carrier slide and controlling device intimed relation to provide for coupling the cup at the rest, thepartially drawn shells, and the scrap, to the carrier for forwardmovement therewith, and their subsequent release when new positions forthem have been reached; and driving means to drive said 'plungers, todrive saidfeed disc in a direction to carry the article carriers fromsaid auxiliary trip to the entrance to said conduit, to drive saidejectors, and to drive said timed means, in timed relation each with theother.

In testimony whereof I aflix my signa- WALTER s. norniznnan.

